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A polar bear and its cub in Arctic National Wildlife Refuge, Alaska.
slideshow

Celebrating Marine Moms

 The ocean is home to many moms of all shapes and sizes: from charismatic polar...
Wed, 04/24/2013 - 17:29
Two thorny seahorses sit back to back underwater.
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Seahorse Lovebirds

 Most wild seahorses (here the thorny seahorse Hippocampus histrix) are...
A male short-snouted seahorse with a pouch full of eggs.
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A Pregnant Seahorse

 Instead of females, male seahorses carry the developing seahorse embryos in a...
This close-up view of salps, which have aggregated together into a long chain, have brilliant red guts from eating red plankton.
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Close-up View of Salps

 This close-up view of salps, which have aggregated together into a long chain, have...
This purple urchin Paleopneustes cristatus is seldom seen by itself, and can be found in groups of hundreds.
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Purple Sea Urchin

 This purple urchin Paleopneustes cristatus is seldom seen by itself, and...
Even when a lobster is still a developing egg, you can see some of its adult features: an eye and legs.
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Lobster Egg

 Even when a lobster is still a developing egg, you can see some of its adult...